Biju Kumar

Biju Kumar
University of Kerala · Department of Aquatic Biology & Fisheries

MSc, MPhil, PhD
Professor in the Department of Aquatic Biology & Fisheries, University of Kerala, India

About

303
Publications
191,630
Reads
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1,574
Citations
Introduction
Currently engaged taxonomic studies on marine fish, molluscs and crustaceans.
Additional affiliations
July 2007 - August 2020
University of Kerala
Position
  • Professor
January 2007 - February 2017
University of Kerala
Position
  • Professor
June 1994 - May 2000
NSS College Ottapalam
Position
  • Professor (Assistant)

Publications

Publications (303)
Article
Full-text available
Aim: Freshwater planarians may have a wide geographical range despite their assumed low vagility. Found across four continents, Dugesia may have either an ancient origin on a large palaeo landmass, followed by colonisation in different regions before continental fragmentation, or a more recent origin and subsequent transoceanic dispersal. We seek...
Article
Full-text available
We present for the first time, data on fish assemblage structure for ten temporarily closed estuaries (TCEs) along the south-western coast of India. Fish community structure differed significantly between TCEs based on species presence/absence, estuarine use and feeding mode. Marine migrant and freshwater stragglers dominated the ‘fish guilds’, whi...
Article
Full-text available
Invasive alien species (IAS) influences the trophic organisation and food web structure in an invaded ecosystem, and therefore it is imperative to quantify the resultant ecological impacts. The globally recognised ecosystem modelling platform, Ecopath with Ecosim was used to delineate the impacts of IAS on a tropical freshwater pond ecosystem in In...
Book
Full-text available
The first comprehensive guide to the molluscs of the Gulf of Mannar — The Molluscs of Gulf of Mannar, India and Adjacent Waters: A Fully Illustrated Guide — provides a detailed pictorial portrayal of 1041 species of molluscs, including 722 gastropods, 287 bivalves, 7 scaphopods, 21 cephalopods and 4 polyplacophorans. This field guide sums up two de...
Article
The Conidae are predatory marine gastropods and they produce one of the most potent venoms in nature. They are ecologically vital for regulating trophic positions and act as primary carnivores in oceans. Amateur shell collectors target some species and ecosystems are intensively exploited by collectors of ornamental shells and commercial traders. M...
Article
The global distribution and host records of the external fish parasitic isopod genus Renocila Miers, 1880, are reviewed. A revised generic diagnosis is provided and 11 species of Renocila are regarded as Renocila incertae sedis. Renocila trillesi Aneesh and Kumar sp. nov., parasitizing the coral grouper, Cephalopholis miniata (Forsskål, 1775) colle...
Article
Norileca hathai Aneesh, Nashad and Kumar sp. nov., parasitizing the blacktip trevally, Caranx heberi (Bennett, 1830) (Carangidae) from off Burmanallah, South Andaman, India is described and illustrated. Norileca hathai sp. nov., the fourth species of Norileca Bruce, 1990, is characterized by: body twisted to one side; small body size (10–12 mm); da...
Article
Norileca hathai Aneesh, Nashad and Kumar sp. nov., parasitizing the blacktip trevally, Caranx heberi (Bennett, 1830) (Carangidae) from off Burmanallah, South Andaman, India is described and illustrated. Norileca hathai sp. nov., the fourth species of Norileca Bruce, 1990, is characterized by: body twisted to one side; small body size (10–12 mm); da...
Chapter
The recent destruction and deterioration of the environment in the Anthropocene have led to a worldwide decline in biodiversity. This demands the precise identification and cataloging of the current biodiversity before they vanish and prioritize conservation programs for the threatened species. For beginners in biodiversity and taxonomy research on...
Article
Full-text available
Members of the fish parasitic isopod family Cymothoidae usually parasitize a host fish by a single species infestation. For the first time from Indian waters two species of cymothoids, the body surface infesting Anilocra grandmaae Aneesh, Hadfield, Smit and Kumar, 2021 and the branchial infesting Agarna malayi Tiwari, 1952, were reported simultaneo...
Article
Based on recently collected material, we redescribe the poorly known synbranchid species Ophichthys fossorius. This highly fossorial species is known from different localities in Kerala, Peninsular India. It can be distinguished from its congeners by its vertebral count of 73-78 precaudal + 52-58 caudal = 126-132 total vertebrae.
Article
Full-text available
The survey of molluscan fauna of Ashtamudi estuary of the southwest coast of India recorded the presence of 119 species classified under 3 classes (Polyplacophora, Gastropoda and Bivalvia), 57 families and 96 genera. The species diversity was dominated by the Gastropoda (69 species), followed by the Bivalvia (49 species) and the Polyplacophora (1 s...
Article
Full-text available
The present study reports an unusual caligid copepod, Anchicaligus nautili (Willey, 1896) infesting the deep-water chambered nautilus Nautilus pompilius Linnaeus, 1758 from the Indian Ocean. Both male and female are redescribed and illustrated based on the materials recovered from the museum collection of the Department of Aquatic Biology & Fisheri...
Research
Full-text available
Abstract: The present paper deals with the breeding biology of the invasive fish Pterygoplicthys pardalis from the natural drainages of Thiruvananthapuram, Kerala. The specimens were collected from Amayizhanchan Thodu, a natural drainage running through the heart of the city. A total of 145 males and 142 females were collected from January to Decem...
Research
Full-text available
The Journal publishes invited review articles, special issues and original contributions dealing with all aspects of Aquatic Biology and Fisheries, and appreciates multidisciplinary research papers on emerging and frontier areas of research in Aquatic Biology and Fisheries. The contributions can be in the form of original research papers and short...
Article
The present study reports an unusual caligid copepod, Anchicaligus nautili (Willey, 1896) infesting the deep-water chambered nautilus Nautilus pompilius Linnaeus, 1758 from the Indian Ocean. Both male and female are redescribed and illustrated based on the materials recovered from the museum collection of the Department of Aquatic Biology & Fisheri...
Article
Full-text available
Focusing on extreme climatic events in India’s Western Ghats Biodiversity Hotspot, we demonstrate that unmanaged aquaculture and unregulated fisheries can often combine with ECE in exacerbating biological invasions through the unexpected introduction and escape of novel alien species. High magnitude flooding events in August 2018 and 2019 resulted...
Article
This study correlated the abundance of five jellyfish species in the south-west coast of India, South-eastern Arabian Sea, Crambionella orsini, Lychnorhiza malayensis, Chrysaora caliparea, Netrostoma coerulescens and Cyanea nozakii, with hydrographic parameters. Partial least square (PLS) analysis suggested strong correlations between jellyfish abu...
Article
This study correlated the abundance of five jellyfish species in the south-west coast of India, South-eastern Arabian Sea, Crambionella orsini, Lychnorhiza malayensis, Chrysaora caliparea, Netrostoma coerulescens and Cyanea nozakii, with hydrographic parameters. Partial least square (PLS) analysis suggested strong correlations between jellyfish abu...
Article
Full-text available
The threat posed by invasive non-native species worldwide requires a global approach to identify which introduced species are likely to pose an elevated risk of impact to native species and ecosystems. To inform policy, stakeholders and management decisions on global threats to aquatic ecosystems, 195 assessors representing 120 risk assessment area...
Article
A new genus of freshwater crab, Rajathelphusa gen. nov., and two species, R. ala sp. nov. (type species) and R. muni sp. nov., are described from the Kerala part of the Western Ghats biodiversity hotspot, India. The new genus is superficially similar to Arcithelphusa and Cylindrotelphusa from the same hotspot, but can easily be distinguished by the...
Preprint
Full-text available
We present for the first-time data on fish assemblage structure for ten temporarily closed estuaries (TCEs) along the western coast of India. Fish community structure differed significantly between TCEs based on species presence/absence, estuarine use and feeding mode - differences based on estuarine surface area and geographical position (northern...
Article
The genus Lobothorax Bleeker, 1857 is revised with the description of a new species collected from the gempylidaen fish Promethichthys prometheus (Cuvier, 1832) from the southwestern coast of India. A revised generic diagnosis is provided based on the redescription of the type species. Lobothorax aurita (Schioedte and Meinert, 1883) is here synonym...
Article
Full-text available
A fish parasitic isopod recently reported from India as Anilocra leptosoma Bleeker, 1857, was re-examined and morphologically compared to five closely related species: A. capensis Leach, 1818, A. clupei Williams and Bunkley-Williams, 1986, A. leptosoma Bleeker, 1857, A. paulsikkeli Welicky and Smit, 2019 and A. pilchardi Bariche and Trilles, 2006....
Article
Full-text available
We present results of the first major attempt to record the distribution of aquatic alien species in the Western Ghats Biodiversity Hotspot using Geographical Information System. A total of 32 alien species, including four macrophytes (Salvinia molesta, Pistia stratiotes, Eichhornia crassipes and Cabomba furcata) and 28 fish were recorded from the...
Research
Full-text available
Abstract Gut contents of the exotic characid fish Piaractus brachypomus (Cuvier, 1818) that escaped into the Vembanad-Kole Wetland, India, during the floods were examined for their gut food spectrum. The qualitative analysis of gut contents showed that the fish is an omnivore with detritus (27 %) as the most dominant food item followed by, plant m...
Article
Gut contents of the exotic characid fish Piaractus brachypomus (Cuvier, 1818) that escaped into the Vembanad-Kole Wetland, India, during the floods were examined for their gut food spectrum. The qualitative analysis of gut contents showed that the fish is an omnivore with detritus (27 %) as the most dominant food item followed by, plant matter (25...
Conference Paper
Full-text available
Jellyfish is traditionally one of the favourite marine food products in Asian countries such as China, Japan, Malaysia, Korea and Singapore. Jellyfish species from India have also become very popular in the global market as a seafood item since 1984 and this scenario helped fishers in getting additional revenue, particularly during the jellyfish bl...
Article
Full-text available
A new species of parasitic copepod of the genus Lernaeenicus Lesueur, 1824 (Siphonostomatoida: Pennellidae) parasitizing the torpedo scad Megalaspis cordyla (Linnaeus) collected from the Arabian Sea, off Kerala coast, India is described and illustrated. The new species, Lernaeenicus megalaspis sp. nov., can be distinguished from its other 32 congen...
Article
A new species of parasitic copepod of the genus Lernaeenicus Lesueur, 1824 Lesueur CA. 1824. On three new species of parasitic Vermes, belonging to the Linnæan genus Lernæa. Journal of the Academie of National Sciences of Philadelphia. 3(10):286–293. pl. 11. [Google Scholar] (Siphonostomatoida: Pennellidae) parasitizing the torpedo scad Megalaspis...
Article
The COVID-19 pandemic has impacted every sphere of human society. The paradigm shift of focus to COVID-related research and management has significantly affected various scientific domains, including biodiversity conservation. We assessed the perceptions of early-career researchers working for biodiversity conservation across India, to understand t...
Article
The jellyfish venom stored in nematocysts contains highly toxic compounds comprising of polypeptides, enzymes and other proteins, which form their chemical defence armoury against predators. We have characterized the proteome of crude venom extract from three bloom-forming scyphozoan jellyfish along the south-west coast of India, Chrysaora calipare...
Article
Bycatch of trawl fishery is a global concern and batoid fishes, including skates, rays and guitar fishes, are caught frequently as non-targeted species in commercial trawl fishery of India. While the commercial batoid species are documented separately in fishery data, a large number of non-commercial species do not form part of fishery data, even t...
Article
Full-text available
A fish parasitic isopod recently reported from India as Anilocra leptosoma Bleeker, 1857, was re-examined and morphologically compared to five closely related species: A. capensis Leach1818, A. clupei Williams and Bunkley-Williams, 1986, A. leptosoma Bleeker, 1857, A. paulsikkeli Welicky and Smit, 2019 and A. pilchardi Bariche & Trilles, 2006. This...
Chapter
The present chapter discusses the current status on the diversity of parasitic cymothoids infesting the deep-sea and open waters fishes of India based on published literatures and personal research work. Among more than 60 known Indian cymothoids, only 35 species belonging to 14 genera were recorded from deep-sea and/or oceanic/open water fishes fr...
Poster
Full-text available
The identification poster for Protected Molluscs (Seashells) of India have been developed to help wildlife law enforcement agencies identify various species of molluscs in illegal wildlife trade. This provides quick reference to important information about the species in focus such as their reported legal and conservation status, distribution, iden...
Article
The genus Lobothorax Bleeker, 1857 is revised with the description of a new species collected from the gempylidaen fish Promethichthys prometheus (Cuvier, 1832) from the southwestern coast of India. A revised generic diagnosis is provided based on the redescription of the type species. Lobothorax aurita (Schioedte and Meinert, 1883) is here synonym...
Article
Full-text available
Received on: 25-10-2020; Revised on:01-02-2021; Accepted on: 02-02-2021 This paper reports cetacean stranding events along Kerala coast during 2017 to 2019 of Bryde's whale (Balaenoptera edeni), blue whale (Balaenoptera musculus), killer whale (Orcinus orca) and Indo-Pacific finless porpoise (Neophocaena phocaenoides) identified through morphologic...
Article
Full-text available
Jellyfishes, especially those cnidarians in the class Scyphozoa, Cubozoa and Hydrozoa, are integral components of marine biodiversity, which are also used extensively for research in ethology to bioengineering. They are also extensively used as exhibits in public aquaria. Here, we record the behavioural responses of jellyfish Crambionella orsini Va...
Article
Full-text available
Nephropsis stewarti Wood-Mason, 1872 is the most common species of the deep-sea clawed lobster genus Nephropsis Wood-Mason, 1872 in the Indo-West Pacific. Morphological comparisons and genetic analyses of extensive material referred to this lobster revealed the presence of three species. The three species differ mainly in body size, development of...
Book
Full-text available
The Journal publishes invited review articles, special issues and original contributions dealing with all aspects of Aquatic Biology and Fisheries, and appreciates multidisciplinary research papers on emerging and frontier areas of research in Aquatic Biology and Fisheries. The contributions can be in the form of original research papers and short...
Article
We provide a detailed description of the head and shoulder girdle osteology of the holotype of the synbranchid 'Monopterus' roseni Bailey & Gans. Collected from a well in Kerala, this subterranean synbranchid shows a number of unique and highly derived characters in the gill arch skeleton. In 'Monopterus'roseni, basibranchial 2 does not articulate...
Book
Full-text available
Special issue of the Journal of Aquatic Biology and Fisheries based on the papers presented in the International Conference on Rivers for Future organised by University of Kerala
Article
Full-text available
Brucethoa bharata gen. et sp. nov. is described from the host fish Glossanodon macrocephalus (Argentinidae), at depths of 300–600 metres from the south-west coast of India.
Article
Full-text available
Brucethoa bharata gen. et sp. nov. is described from the host fish Glossanodon macrocephalus Bineesh and Endo, 2019 (Argentinidae), at depths of 300–600 metres from the south-west coast of India. This monotypic genus is characterised by a head weakly immersed in pereonite 1, dorsum strongly vaulted, pereonites 6 and 7 with posterolateral margin exp...
Article
Brucethoa bharata gen. et sp. nov. is described from the host fish Glossanodon macrocephalus Bineesh and Endo, 2019 (Argentinidae), at depths of 300–600 metres from the south-west coast of India. This monotypic genus is characterised by a head weakly immersed in pereonite 1, dorsum strongly vaulted, pereonites 6 and 7 with posterolateral margin exp...
Chapter
Abstract: Fisheries and related activities, including aquaculture in inland and marine sectors, offer livelihoods to thousands of people in developing countries like India, besides contributing significantly to economic and nutritional security of the nation. One of the major challenges in the world, especially in developing countries like India, i...
Article
Full-text available
The moon wrasse Thalassoma lunare has an attractive colour pattern that makes it a favourite and economically valuable species in marine aquarium fish trade. This study was conducted to determine length-weight and length-length relationships and condition factor (K) of T. lunare. A total of 51specimens caught by a non-return valve trap net and gill...
Conference Paper
Full-text available
Noteworthy temporal shifts in ichthyofaunal species dominance have been observed in Veli-Akkulam Lake, India, within a period of four decades. Over this period, the exotic Mozambique tilapia Oreochromis mossambicus has evolved as the most dominant fish species, replacing the dominant indigenous cichlid Etroplus suratensis. The trophic impact of O....
Article
Full-text available
The neritiform gastropods Plesiothyreus cinnamomeus (Gould, 1846) was collected from Indian coast for the first time and Zacalantica galathea (Lamarck, 1819) for the first time from the recorded from Lakshadweep Sea, west coast of India. The record of Plesiothyreus cinnamomeus confirms the extended distribution of the species from the Pacific Ocean...
Article
Selection of gastropods as shelter by hermit crabs in the controlled experiments would provide useful information on the utility of these shells in nature. In this study, shell size and species preferences of Diogenes alias from North Eastern Arabian Sea were quantified by free choice experiments. Males of D. alias, prefer Indothais lacera and Tibi...
Article
Full-text available
This study reports the occurrence of box jellyfish Tripedalia cystophora from the brackish water of Kerala, India for the first time. The other reports of this species were from Jamaica, the Philippines, Ecuador, Japan, Puerto Rico, Brazil, Indonesia, Florida, Thailand, Grand Bahama, Seychelles, Comoros, Australia, Hawaii and the Gulf of Mexico. Th...
Article
Full-text available
A mass balanced trophic model was constructed for Sasthamkotta Lake, a Ramsar site in Kerala, India to study the energy flows and species interactions among fourteen key functional groups in the lake. The functional groups considered were fish
Book
Full-text available
The International Biodiversity Congress (IBC 2018) was organised as a joint initiative of Centre for Innovation in Science and Social Action (CISSA), Navdanya, Forest Research Institute (FRI), Indian Council of Forestry Research and Education (ICFRE), Wildlife Institute of India (WII), Uttarakhand Biodiversity Board and Uttarakhand Council for Scie...
Article
This study reports on the ingestion of microplastics by the alien fish Pirapitinga, Piaractus brachypomus (Characiformes; Serrasalmidae) that escaped Vembanad lake, the largest brackish water lake in the southwest coast of India, from the aquaculture systems during flooding. Microplastics separated from the gut of 32 out of the 123 fishes (26%) exa...
Article
Full-text available
Squat lobster specimens belonging to the family Munididae were recently collected along the southwestern coast of the mainland of India and in the Andaman Islands. The specimens belong to two known species, Agononida prolixa (Alcock, 1894) and Munida compacta Macpherson, 1997, and a new species, Paramunida bineeshi sp. nov. We here redescribe A. pr...
Data
http://www.marinespecies.org/aphia.php?p=taxdetails&id=1453572 Elthusa pseudorhombus Aneesh, Helna, Kumar & Trilles, 2020
Data
http://www.marinespecies.org/aphia.php?p=taxdetails&id=1453573 Elthusa uranoscopus Aneesh, Helna, Kumar & Trilles, 2020
Data
http://www.marinespecies.org/aphia.php?p=taxdetails&id=1453571 Elthusa fistularia Aneesh, Helna, Kumar & Trilles, 2020
Article
The genus Elthusa Schioedte & Meinert, 1884 from Indian waters is reviewed and three new species are described from India. A revised generic diagnosis is provided based on the type species and 13 species of Elthusa are regarded as Elthusa incertae sedis. Female stages of Elthusa fistularia sp. nov. collected from Fistularia petimba Lacepède,1803 an...
Article
We redescribe the triacanthodid spikefish Mephisto fraserbrunneri Tyler 1966 based upon eight specimens (five newly reported herein) and the first color photographs of freshly collected specimens; these data are compared with that of the single specimen of the recently described M. albomaculosus Matsuura, Psomadakis, and Mya Than Tun 2018. Both spe...
Article
This paper describes two new species of parasitic copepods of the family Chondracanthidae H. Milne Edwards, 1840. Acanthochondria krishnai sp. n. is described from Dollfus' stargrazer, Uranoscopus guttatus Cuvier, collected from Muttom and Colachel, Tamil Nadu, and Chondracanthus kabatai sp. n. from Silvery john dory, Zenopsis conchifer Lowe, colle...